Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | Pigmentation is important in placing a class of egg-type hens. Although the rate
of re-pigmentation during a period of non-lay is influenced by various factors, the rate of pigment
return is nearly how many times as fast as the rate of fading? a. | Same
rate. | c. | 3 times as
fast. | b. | 2 times as fast. | d. | 1.75 to 2.25 times slower. | | | | |
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| 2. | The
integumentary system would include: a. | the mouth, crop, and other organs of the digestive
tract. | c. | the combined
components of the muscle and skeletal systems giving form to the animal. | b. | skin and
feathers. | d. | nonfunctional
organs of the bird such as the beard, spur, and 5th toe in certain breeds. | | | | |
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| 3. | Pectoral muscles account for approximately 1% of a human's body weight. In the
bird, they account for approximately ___% of the bird's total weight. a. | 5-10 | c. | 15-20 | b. | 10-15 | d. | 20-25 | | | | |
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| 4. | The
tertiary bronchi: a. | radiate toward
the surface of the lung where they end blindly. | c. | branch into the primary bronchi. | b. | pass through the
whole length of each lung and communicate with the air sacs. | d. | branch into the trachea. | | | | |
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| 5. | In
relation to position along the alimentray canal, what segment is nearest the mouth? a. | Pancreas | c. | Ingulvies | b. | Ileum | d. | Muscular Stomach | | | | |
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| 6. | The
gall bladder functions to: a. | produce bile. | c. | store and produce bile. | b. | store
bile. | d. | provide green
pigment for black birds. | | | | |
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| 7. | Which
of the following hormones is believed to stimulate oviposition (egg laying)? a. | FSH | c. | Prolactin | b. | LH | d. | Oxytocin | | | | |
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| 8. | What
is the color of healthy chicken kidneys? a. | Dark red | c. | Bay | b. | Yellow from urine | d. | White from uric acid | | | | |
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| 9. | Nutritional related rickets could be attributed to which of the following management
practices: a. | Confined birds
not receiving adequate dietary vitamin D. | c. | Inadequate dietary calcium levels or limited access to free
choice calcium sources. | b. | Inadequate available phosphorus in
diets. | d. | A, B, and C are
all correct answers. | | | | |
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| 10. | In
most mature female chickens, the following is true: a. | The left ovary
and the left oviduct have developed. | c. | The right ovary and the left oviduct have
developed. | b. | The left ovary and the right oviduct have
developed. | d. | The right ovary
and the right oviduct have developed. | | | | |
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| 11. | Which
of the following diseases of poultry is classified as having the egg as a major source of
transmission: a. | Newcastle | c. | Marek's | b. | Infectious Coryza | d. | Infectious Synovitis | | | | |
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| 12. | Which
of the following is a gas heavier than air that can develop in manure pits during pump out or
agitation and may remain in the pit in concentrations which can kill humans: a. | Hydrogen
Sulfide | c. | Hydrogen
Cyanide | b. | Hydrogen Dioxide | d. | Selenium Cyanide | | | | |
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| 13. | Biogas may be produced from manure in ______ conditions and has an energy value of
_____ BTU per cubic foot compared to methane, which has 1000 BTU per cubic foot. a. | aerobic;
1600 | c. | anaerobic;
1600 | b. | anaerobic;
600 | d. | aerobic;
600 | | | | |
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| 14. | Reasonable expectations for the operation of a properly functioning chicken mortality
composter would be for the temperature of the composting material to rise to ______ degrees F and for
the entire process to take almost ____ days for the production of the finish
product. a. | 125-135;
30 | c. | 125-135;
60 | b. | 145-165;
60 | d. | 125-145;
90 | | | | |
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| 15. | What
component of an air mixture often contains most of the total heat energy of the
mixture? a. | water
vapor | c. | carbon
dioxide | b. | nitrogen | d. | oxygen | | | | |
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| 16. | What
controls air velocity of a properly designed ventilation system utilizing jet flow? a. | fan
speed | c. | inlet slot
type | b. | inlet area for
given amount of air flow | d. | laminar flow
across the inlet deflector if outlet shutters do not restrict the exit flow | | | | |
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| 17. | Which
of the following is thought to be more important when considering the comfort (health)of confined
birds during hot weather: a. | humidity. | c. | relative humidity. | b. | temperature of
house air, walls, and ceilings. | d. | velocity of air
at bird level. | | | | |
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| 18. | What
season and why is that season considered most difficult for the functioning of automatic ventilation
controls? a. | Summer; because
of switching demands for high current flow to the large fans. | c. | Winter; because of icing on the exhaust shutters causing
malfunction. | b. | Summer; because summer ventilation needs go to infinity,
whereas winter ventilation needs bottom outlet at the bird's level to supply respiratory oxygen
levels. | d. | Winter; because
controls become critical due to the frequent and wide variations in outdoor
conditions. | | | | |
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| 19. | A
"fully cooked" patty, tender, or nugget has been cooked to a minimum internal meat
temperature of ____ degrees Fahrenheit, as required for "fully cooked" labeling by the
USDA.
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| 20. | In a
poultry building utilizing cooling pads to cool the house in intensely hot weather, the best air flow
through the house would be a. | jet flow with turbulence. | c. | laminar flow with turbulence. | b. | laminar flow
with limited turbulence. | d. | jet flow with
limited turbulence. | | | | |
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| 21. | What
is "Agribusiness"? a. | A functionally defined term related to the supplying of
producers with services and materials necessary for production, including marketing and
processing. | c. | The more
advanced and sophisticated aspects of agricultural production requiring advanced technical training
and financing. | b. | Farming and farm production. | d. | Compete or go broke. | | | | |
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| 22. | What
group probably receives the most scientifically balanced diet throughout their
lives? a. | Commercial
layers, turkeys, and broilers. | c. | Companion
animals (dogs and cats). | b. | Humans. | d. | Beef cattle. | | | | |
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| 23. | In a
lagoon waste handling system, approximately ______% of the phosphorus settles to the bottom of the
lagoon.
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| 24. | The
person identified as the resident USDA grader in a large poultry processing plant
will/may: a. | individually
grade each carcass or part. | c. | authorize plant
employees to assist in the grading process, yet perform final checkgrading and certification thought
sampling. | b. | authorize plant employees to assist in the grading
process. | d. | be a direct
employee of the plant and hold management positions within the operation. | | | | |
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| 25. | Where
on the chicken might you find the covert feathers? a. | neck and
fluff | c. | neck and
breast | b. | tail and neck | d. | tail and wings | | | | |
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| 26. | A
light laying hen is estimated to consume 77 pounds of feed per year (at 11 to 13% moisture) and
produce an average of 15.4 pounds of manure on a dry weight basis. Fresh manure is 75-80%
moisture. What is the dry matter percentage of this fresh manure if dry matter percentage
equals 100 minus moisture percentage? a. | 0.20 to 0.25% | c. | 75 to 80% | b. | 20 to
25% | d. | 0.75-0.80% | | | | |
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| 27. | A
light laying hen is estimated to consume 77 pounds of feed per year (at 11 to 13% moisture) and
produce an average of 15.4 pounds of manure on a dry weight basis. Fresh manure is 75-80%
moisture. From this estimate, approximately how many grams of feed will a light laying hen eat
per day if one pound of equivalent to 453.59 grams? a. | 35,000
grams | c. | 0.0005
gram | b. | 0.17
grams | d. | 96
grams | | | | |
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| 28. | A
light laying hen is estimated to consume 77 pounds of feed per year (at 11 to 13% moisture) and
produce an average of 15.4 pounds of manure on a dry weight basis. Fresh manure is 75-80%
moisture. On a dry-weight basis, how many pounds of feed does this hen consume in a
year? a. | 87 to 89
pounds | c. | 35,000
pounds | b. | 67 to 68.5 pounds | d. | 77 pounds | | | | |
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| 29. | A
light laying hen is estimated to consume 77 pounds of feed per year (at 11 to 13% moisture) and
produce an average of 15.4 pounds of manure on a dry weight basis. Fresh manure is 75-80%
moisture. From this estimate and assuming the feed to be 12% moisture and the manure to be 87%
moisture, how many pounds of "wet" manure would be produced (fresh basis without drying)
for each pound of feed consumed? a. | 1.75 pounds of wet manure produced per pound of feed
consumed. | c. | 7.69 pounds of
wet manure produced per pound of feed consumed. | b. | 592 pounds of
wet manure produced per pound of feed consumed. | d. | 1.54 pounds of wet manure produced per pound of feed
consumed. | | | | |
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| 30. | A
light laying hen is estimated to consume 77 pounds of feed per year (at 11 to 13% moisture) and
produce an average of 15.4 pounds of manure on a dry weight basis. Fresh manure is 75-80%
moisture. From this estimate, how many pounds of feed per year and pounds of manure on a
dry-weight basis per year (365-days) will a flock of 100,000 light layers consume and
produce? a. | 7.7 million
pounds of feed (at 11 to 13% moisture) and 1.54 million pounds manure dry-weight
basis. | c. | 7.7 million
pounds manure dry-weight basis and 1.54 millions pounds feed dry-weight
basis. | b. | 7.7 million pounds feed dry-weight basis and 1.54 million
pounds manure dry-weight basis. | d. | 3.08 million
pounds of feed and 1.54 million pounds manure dry-weight basis. | | | | |
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